Release version 0.4.6-0

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@samply/lens",
   "description": "A web component library for clinical data search and visualisation",
-  "version": "0.4.5",
+  "version": "0.4.6-0",
   "type": "module",
   "module": "dist/lens.js",
   "main": "dist/lens.umd.js",

packages/lib/src/classes/spot.ts

@@ -80,13 +80,6 @@ export class Spot {
                 updateResponse(parsedResponse);
             });
 
-            // read error events from beam
-            eventSource.addEventListener("error", (message) => {
-                console.error(`Beam returned error ${message}`);
-                errorChannel.set("Fehler von Beam erhalten"); // show user-facing error
-                eventSource.close();
-            });
-
             // event source in javascript throws an error then the event source is closed by backend
             eventSource.onerror = () => {
                 console.info(

packages/lib/src/helpers/ast-transformer.ts

@@ -21,7 +21,28 @@ import { get } from "svelte/store";
  * @returns Ast: the AST will later be converted to a query language of choice
  */
 export const buildAstFromQuery = (queryStore: QueryItem[][]): AstTopLayer => {
-    return returnNestedValues(queryStore) as AstTopLayer;
+    const ast = returnNestedValues(queryStore) as AstTopLayer;
+
+    // The empty query is currently a special case because focus and potentially other consumers want it like this
+    // Instead of:
+    // {"nodeType":"branch","operand":"OR","children":[{"nodeType":"branch","operand":"AND","children":[]}]}
+    // We return:
+    // {"nodeType":"branch","operand":"OR","children":[]}
+    if (ast.children.length === 1) {
+        const onlyChild = ast.children[0];
+        if (
+            onlyChild.nodeType === "branch" &&
+            onlyChild.children.length === 0
+        ) {
+            return {
+                nodeType: "branch",
+                operand: "OR",
+                children: [],
+            };
+        }
+    }
+
+    return ast;
 };
 
 /**